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B767-300 flight crew reported an inflight engine shut down and immediate landing after the right engine eec failed.
| Attributes | |
| ACN | 1711944 |
| Time | |
| Date | 201912 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Engine Control |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
At a cruise altitude of FL370; the captain noticed the altn light illuminated near the right engine electronic engine control (eec) switch on the overhead panel. There was no associated EICAS message nor did the autothrottle disconnect with the apparent mode switch of the eec. The crew discussed the indications and followed QRH procedures. During the subsequent descent in a busy ATC environment; the right engine primary indications (N1 and egt) began fluxing rapidly and the right engine secondary indications (N2 and ff) increased toward the upper limitations of the normal operating ranges. At approximately 12;500 ft MSL; the thrust generated by the right engine with the throttle at idle prevented further descent and began impacting aircraft controllability. With no further relief available via the QRH and aircraft fuel state an increasing concern; the crew coordinated with ZZZ approach to receive a block altitude assignment and shut down the right engine in accordance with the QRH. Approach control then vectored the aircraft in IMC conditions (rain showers) for an ILS to runway 8R. Before the malfunction and engine shutdown; the crew had planned for an RNAV GPS approach to runway 8L.
Original NASA ASRS Text
Title: B767-300 flight crew reported an inflight engine shut down and immediate landing after the right engine EEC failed.
Narrative: At a cruise altitude of FL370; the Captain noticed the ALTN light illuminated near the right engine Electronic Engine Control (EEC) switch on the overhead panel. There was no associated EICAS message nor did the autothrottle disconnect with the apparent mode switch of the EEC. The crew discussed the indications and followed QRH procedures. During the subsequent descent in a busy ATC environment; the right engine primary indications (N1 and EGT) began fluxing rapidly and the right engine secondary indications (N2 and FF) increased toward the upper limitations of the normal operating ranges. At approximately 12;500 ft MSL; the thrust generated by the right engine with the throttle at idle prevented further descent and began impacting aircraft controllability. With no further relief available via the QRH and aircraft fuel state an increasing concern; the crew coordinated with ZZZ approach to receive a block altitude assignment and shut down the right engine in accordance with the QRH. Approach Control then vectored the aircraft in IMC conditions (rain showers) for an ILS to runway 8R. Before the malfunction and engine shutdown; the crew had planned for an RNAV GPS approach to runway 8L.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.